welcome to our viewers on pbs in america and are around the globe. iran's currency is in freefall tonight. it has fallen 10% in trading against the dollar today, having already lost 80% of its value since the beginning of the year. president mahmoud ahmadinejad hased the west of using sanctions to wage economic war against the country. u.s. officials say that this reflects the success of the economic sanctions targeted on the the nuclear program. >> a frightening crisis for the people of iran, a collapsing currency. with money losing value all the time, food prices have soared. some shops have stopped trading. many worry about jobs, savings, and why the government cannot stop it. >> the prices of food, cheese, butter, milk and even fruit have witnessed an increase of 10% in the last two weeks. people are complaining about that. they are publicly complaining about this situation and they blame the situation on a ahmadinejad. >> today, he put the blame on western sanctions. >> it is very clear, iran is being pressurized. there are sanctions from the en